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Volume 35 Issue 10
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XU Yong-fu, WANG Chi, HUANG Ming, XU Jie, YANG Lei. Thixotropy of saturated silty soils due to construction of DCM columns[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(10): 1784-1789.
Citation: XU Yong-fu, WANG Chi, HUANG Ming, XU Jie, YANG Lei. Thixotropy of saturated silty soils due to construction of DCM columns[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(10): 1784-1789.
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Thixotropy of saturated silty soils due to construction of DCM columns

  • 1. Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China, 2. Road Administration Bureau of Taizhou City, Taizhou 225300, China

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  • Received Date: December 17, 2012
  • Published Date: October 19, 2013
    Graphical Abstract
    • Abstract
  • Sinking of DCM columns at their tops occurs in some highways. In order to explain the reason of the sinking of DCM columns, pore water pressure cells and earth pressure cells are installed in the soils among DCM columns at different depths. A method to predict the sinking of columns is presented according to the difference between the earth pressure and the excess pore water pressure. The thixotropy of saturated silty soils due to the construction of DCM columns is studied using the results of static cone penetration tests and in-situ and laboratory results of soil mechanics. The strength of saturated silty soils increases with time after the construction of DCM columns.
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    • References (17)
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